By R. C. Selley
Following on from the 1st 2 books within the sequence, Sedimentary Basins of the realm, which lined chinese language Sedimentary Basins (Volume 1) and South Pacific Sedimentary Basins (Volume 2), comes quantity three, on African Basins.Africa covers a bigger land sector than america, Europe, India and the ASEAN countries prepare. it's wealthy in average assets, together with oil, fuel, coal and approximately each metalliferous mineral. but Africa remains to be one of many least explored continents.This publication brings jointly in a single quantity, concise stories of basins formerly documented in an enormous array of diffuse literature. It additionally comprises many of the first precise money owed of numerous basins that have by no means ahead of been defined in such intensity. those comprise the onshore Owambo, Iullemmeden, and Sudanese rift basins, and the offshore basins of southern Africa.The contributions are by way of authors, and groups of authors, with nice wisdom and adventure of the basins that they describe.The 13 chapters are prepared in three elements masking North Africa, vital Africa and Southern Africa and the publication is illustrated through maps, cross-sections, stratigraphic sections and seismic strains. each one bankruptcy incorporates a accomplished bibliography and the ebook concludes with a subject matter index.For educational geologists learning the geology of Africa, and for business geologists looking ordinary assets inside of African sedimentary rocks, this publication is a useful resource of data.
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The Sirte embayment can therefore be regarded as a major inversion structure (Fig. 6). Detailed mapping of the Sirte basin reveals that it is composed of a series of gently curved horsts and graben (Fig. 7). The faults that define these features are characterized by abrupt dog-legs, or local sudden curves. Many of them are scissor faults, whose direction of down-throw changes along the length of the fault. The most active time of fault movement was in the mid-Cretaceous, gradually dying out towards the end of the Palaeocene.
Nearshore marine and continental sediments of the Sirte basin, Libya. Quart. J. Geol. Soc. , 124: 419-460. , 1971. Structural control on Miocene Sedimentation of the Sirte basin, Libya. In: C. Gray (Editor), Symp. on the Geology of Libya. University of Libya, Tripoli, pp. 99-106. E. 1969. The Idris "A" bioherm and oil field, Sirte Basin, Libya. In: E Hepple (Editor), The Exploration for Petroleum in Europe and North Africa. Inst. Pet. London, pp. 31-48. , 1983. Sirte Basin, north-central Libya: Cretaceous rifting above a fixed mantle hot spot?
Elsewhere continental Pliocene sediments can only be differentiated from Quaternary ones by palaeontology. Both consist of fluvial sands and lacustrine shales, marls and limestones. These beds crop out intermittently across the Sirte basin, whose surface, as mentioned earlier, consists largely of the flat gravel plain that is termed Sarir. THE SIRTE BASIN OF LIBYA 31 STRUCTURE AND TECTONIC EVOLUTION The progressive opening up of the Atlantic ocean was associated with the development of an extensive rift systems across much of Africa (Fairhead and Binks, 1991).